As shown in the figure, Site1 and Site2 need to achieve mutual access through the operator's BGP/MPLS IPVPN. It is known that the public network tunnel between PE1 and PE2 has been established (the label information is shown in the figure), and PF1 has advertised the 192.168.1.0/24 network segment route in Site1 to PE2 through the MP.JIBGP neighbor relationship, and the route learning is normal.

When capturing the data that Site2 visits the 192.168.1.0/24 of Site1 between P and PE1, what should be the outermost label?

• A.6661
• B.8888
• C.3
• D.6662

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BGP routing strategy can control the distribution and reception of routes.

• A.TRUE
• B.FALSE

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MPLS is called multi-protocol label switching. Which description is correct about the label in MPLS? (Multiple choice)

• A.The label is carried by the header of the MIPLS message and has a global meaning, that is, the label value of all routers cannot be repeated
• B.MPLS supports single-layer labels as well as multi-layer labels
• C.A label is an identifier with a fixed length and only local meaning, which is used to uniquely identify the FEC to which a group belongs
• D.MPLS system has a variety of label publishing protocols, such as LDP is a label publishing protocol

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When troubleshooting a network, if you need to confirm the business traffic path, which of the following tasks may be required? (Multiple choice)

• A.Investigate business traffic path planning in the network design stage
• B.Confirm the data link layer service traffic path
• C.Confirm the network layer business traffic path

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There is the concept of forwarding equivalent FEC in MPLS. Which of the following descriptions is wrong? (Multiple choice)

• A.The division of FEC is very flexible. It can be based on any combination of source address, address, source port, destination port, protocol type or VPN, etc.
• B.MPLS classifies packets with the same forwarding processing method into one category, which is called FEC
• C.The packets of the same FEC will be processed differently in the MPLS network
• D.A forwarding equivalence FEC will be assigned a unique label value on all routers

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